78140840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{114913}}^1$

素因数の和:114941

約数の個数: 32

約数和(自身を含む): 186160680

約数和(自身を除く): 108019840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 114913, 229826, 459652, 574565, 919304, 1149130, 1953521, 2298260, 3907042, 4596520, 7814084, 9767605, 15628168, 19535210, 39070420, 78140840]

約数ペア:

[(1, 78140840), (2, 39070420), (4, 19535210), (5, 15628168), (8, 9767605), (10, 7814084), (17, 4596520), (20, 3907042), (34, 2298260), (40, 1953521), (68, 1149130), (85, 919304), (136, 574565), (170, 459652), (340, 229826), (680, 114913)]